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AT&T Sim to Verizon 4G LTE

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AT&T Sim to Verizon 4G LTE

I understand that all 4G Verizon phones are unlocked by default (other than if they're on a prepaid plan). I recently tried to move a SIM on network plan to a Verizon 4G LG Smart Phone. AT&T store rep tells me that because the Verizon phone uses a different networking protocol CDMA than AT&T, the SIM card won't work, even if they prepare a properly sized one for me. Does this ring true or have I missed something?

 

Thanks!

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Message 1 of 7
ACE - Expert

Re: AT&T Sim to Verizon 4G LTE

The rep is likely wrong. It depends on the phone but most Verizon phones work on both CDMA and 4G/LTE meaning the ATT SIM card will work. 

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Message 2 of 7
ACE - Expert

Re: AT&T Sim to Verizon 4G LTE

What phone?

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Message 3 of 7
Tutor

Re: AT&T Sim to Verizon 4G LTE

Hi Ace,

 

Thanks for that! I've got what she said confirmed by a friend who works for T-Mobile -- I think the issue is that AT&T SIMs work off of GSM whereas the Verizon Phones only work on CDMA? It's a VS985 4G LTE

 

Thanks again for the prompt response!

Message 4 of 7
ACE - Expert
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Accepted by harodare
‎11-10-2018 1:59 PM

Re: AT&T Sim to Verizon 4G LTE

Back then yes the LG g3 was that way.  Any new phone made in the last 2 years will work on almost any us carrier.

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*The views and opinions expressed on this forum are purely my own. Any product claim, statistic, quote, or other representation about a product or service should be verified with the manufacturer, provider, or party.
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Message 5 of 7
Tutor

Re: AT&T Sim to Verizon 4G LTE

So if I drop by their shop what should I have the rep do? The SIM I have from the ATT phone seems a little too small for the Verizon phone.

Message 6 of 7
Tutor

Re: AT&T Sim to Verizon 4G LTE

So I did drop by and the rep was able to set everything up. Thanks for giving me the impetus to get it done and save some money!

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